When the economy dies, barter will rise

http://www.guardian.co.uk/world/2012/mar/16/greece-on-breadline-cashless-currency?newsfeed=true

"The network is currently busy transforming a disused building owned by Volos university into a permanent exchange and barter space. It will host a daily market from next month at which members can meet and exchange without using cash. Several highly successful open-air markets were held throughout last summer, Choupis said, until the weather got too cold.
'They're quite joyous occasions,' she said. 'It's very liberating, not using money.'"

The only down side to this I see is that as more and more of the Greek economy winds up in barter, the less and less taxes are collected, and again the government never gets out of its hole.  Other than that, sounds great!